CN106334884B - A kind of bridge steel high-strength and high ductility gas-shielded flux-cored wire - Google Patents

A kind of bridge steel high-strength and high ductility gas-shielded flux-cored wire Download PDF

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Publication number
CN106334884B
CN106334884B CN201610906348.6A CN201610906348A CN106334884B CN 106334884 B CN106334884 B CN 106334884B CN 201610906348 A CN201610906348 A CN 201610906348A CN 106334884 B CN106334884 B CN 106334884B
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China
Prior art keywords
strength
cored wire
shielded flux
bridge
medicine core
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CN201610906348.6A
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Chinese (zh)
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CN106334884A (en
Inventor
李华军
徐向军
侯杰昌
贝玉成
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China Railway Shanhaiguan Bridge Group Co Ltd
Tianjin Yongchang Welding Wire Co Ltd
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China Railway Shanhaiguan Bridge Group Co Ltd
Tianjin Yongchang Welding Wire Co Ltd
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Priority to CN201610906348.6A priority Critical patent/CN106334884B/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
    • B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
    • B23K35/36—Selection of non-metallic compositions, e.g. coatings, fluxes; Selection of soldering or welding materials, conjoint with selection of non-metallic compositions, both selections being of interest
    • B23K35/368—Selection of non-metallic compositions of core materials either alone or conjoint with selection of soldering or welding materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
    • B23K35/02—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape
    • B23K35/0255—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape for use in welding
    • B23K35/0261—Rods, electrodes, wires
    • B23K35/0266—Rods, electrodes, wires flux-cored
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
    • B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
    • B23K35/24—Selection of soldering or welding materials proper
    • B23K35/30—Selection of soldering or welding materials proper with the principal constituent melting at less than 1550 degrees C
    • B23K35/3053—Fe as the principal constituent
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
    • B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
    • B23K35/36—Selection of non-metallic compositions, e.g. coatings, fluxes; Selection of soldering or welding materials, conjoint with selection of non-metallic compositions, both selections being of interest
    • B23K35/3601—Selection of non-metallic compositions, e.g. coatings, fluxes; Selection of soldering or welding materials, conjoint with selection of non-metallic compositions, both selections being of interest with inorganic compounds as principal constituents
    • B23K35/3608—Titania or titanates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K9/00—Arc welding or cutting
    • B23K9/16—Arc welding or cutting making use of shielding gas
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2101/00—Articles made by soldering, welding or cutting
    • B23K2101/18—Sheet panels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2101/00—Articles made by soldering, welding or cutting
    • B23K2101/28—Beams
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2103/00—Materials to be soldered, welded or cut
    • B23K2103/02—Iron or ferrous alloys
    • B23K2103/04—Steel or steel alloys

Abstract

The present invention provides a kind of bridge steel high-strength and high ductility gas-shielded flux-cored wires, including crust and the medicine core wrapped up by crust, the medicine core includes the ingredient of following weight fraction, rutile 30%~50%, feldspar 2%~8%, quartzy 1%~6% ﹑ zircon English 0.5%~5%, 0.5%~5% ﹑ lithium fluoride 0.1%~1.5% of sodium fluoride, potassium sodium arc stabilizer 1%~8%, silicomangan 10%~25%, manganese metal 1%~8%, magnesium powder 1%~6%, nickel powder 5%~15%, ferrotianium 0.1%~1.5%, ferro-boron 0.05%~0.6%, surplus is iron powder, the weight fraction of the above ingredient adds up to 100%.Welding wire of the present invention, every ingredient, performance are able to satisfy the engineering requirement of high intensity levels steel plate；It is particularly suitable for the welding of Q500qE.

Description

A kind of bridge steel high-strength and high ductility gas-shielded flux-cored wire
Technical field
The invention belongs to technical field of welding materials, weld more particularly, to a kind of bridge steel high-strength and high ductility gas shielded medicine core Silk.
Background technique
In order to increase the intensity of bridge, more and more engineerings use the steel plate of high intensity levels, such as domestic great bridge Engineering Shanghai Changjiang River bridge, is Q500qE using the high intensity levels steel plate trade mark, and multinomial technical indicator is higher than GB/T 714-2008 " structural steel for bridge " requirement.
But existing welding wire is not able to satisfy the engineering requirement of this kind of trade mark steel plate, in order to match and high-performance Q500qE The welding of steel plate, it is necessary to develop a kind of dedicated gas-shielded flux-cored wire of bridge steel.
Summary of the invention
In view of this, the present invention is directed to propose a kind of bridge steel high-strength and high ductility gas-shielded flux-cored wire, high-strength to cooperate Spend the use of the steel plate of rank；It is particularly suitable for the use of Q500qE steel plate.
In order to achieve the above objectives, the technical scheme of the present invention is realized as follows:
A kind of bridge steel high-strength and high ductility gas-shielded flux-cored wire, including crust and the medicine core wrapped up by crust, the medicine Core includes the ingredient of following weight fraction, rutile 30%~50%, feldspar 2%~8%, quartzy 1%~6% ﹑ zircon English 0.5%~5%, 0.5%~5% ﹑ lithium fluoride 0.1%~1.5% of sodium fluoride, potassium sodium arc stabilizer 1%~8%, silicomangan 10%~25%, manganese metal 1%~8%, magnesium powder 1%~6%, nickel powder 5%~15%, ferrotianium 0.1%~1.5%, ferro-boron 0.05%~0.6%, surplus is iron powder, and the weight fraction of the above ingredient adds up to 100%.The present invention is using conventional medicine core transition Alloy mode and the manufacture of general medicinal powder specification and flux-cored wire production technology.
Preferably, the medicine core includes the ingredient of following weight fraction, rutile 35%~45%, feldspar 3%~6%, Quartzy 2%~4% ﹑ zircon English 1%~3%, 1%~3% ﹑ lithium fluoride 0.2%~1% of sodium fluoride, potassium sodium arc stabilizer 2%~ 5%, silicomangan 15%~20%, manganese metal 2%~5%, magnesium powder 2%~5%, nickel powder 8%~12%, ferrotianium 0.2%~ 1%, ferro-boron 0.1%~0.5%, surplus are iron powder, and the weight fraction of the above ingredient adds up to 100%.
Preferably, the medicine core includes the ingredient of following weight fraction, rutile 38%~42%, feldspar 4%~5%, Quartzy 2.5%~3.5% ﹑ zircon English 1.5%~2.5%, 1.5%~2.5% ﹑ lithium fluoride 0.4%~0.8% of sodium fluoride, potassium Sodium arc stabilizer 3%~4%, silicomangan 16%~19%, manganese metal 3%~4%, magnesium powder 3%~4%, nickel powder 9%~ 11%, ferrotianium 0.4%~0.8%, ferro-boron 0.2%~0.4%, surplus are iron powder, and the weight fraction of the above ingredient adds up to 100%.
Preferably, the mass fraction of the titanium dioxide contained in the rutile is 95%.
Preferably, the crust is SPCC-SD cold-rolled low carbon steel steel band.
Preferably, it is 12%~18% that the medicine core, which accounts for the ratio of welding wire total weight,；Preferably, 13%~17%.
The present invention also provides bridge steel as described above with high-strength and high ductility gas-shielded flux-cored wire bridge steel welding in Using.
Invention also provides bridge steel as described above with high-strength and high ductility gas-shielded flux-cored wire in Q500qE steel plate Application in welding.
Compared with the existing technology, a kind of bridge steel high-strength and high ductility gas-shielded flux-cored wire of the present invention, have with Lower advantage: the performances such as its deposited metal tensile strength, elongation percentage, impact flexibility are more excellent；Deposited metal diffusible hydrogen content is lower, and And there is good cracking resistance；Its every ingredient, performance are able to satisfy the engineering requirement of high intensity levels steel plate；Especially Welding suitable for Q500qE.
Specific embodiment
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the present invention can phase Mutually combination.
Below in conjunction with embodiment, the present invention will be described in detail.
Embodiment one
A kind of bridge steel high-strength and high ductility gas-shielded flux-cored wire, the medicine core include the ingredient of following weight fraction, gold Red stone 42%, feldspar 4%, quartzy 2.5% ﹑ zircon English 1.5%, 1.5% ﹑ lithium fluoride 0.4% of sodium fluoride, potassium sodium arc stabilizer 3%, Silicomangan 16%, manganese metal 3%, magnesium powder 3%, nickel powder 9%, ferrotianium 0.4%, ferro-boron 0.2%, surplus be iron powder, it is above at The weight fraction divided adds up to 100%.
The mass fraction of the titanium dioxide contained in the rutile is 95%.
The crust is SPCC-SD cold-rolled low carbon steel steel band.
The ratio that the medicine core accounts for welding wire total weight is 17%.
The detection of welding wire deposited metal composition, weight percent are carbon 0.042%, sulphur 0.006%, manganese 1.49%, silicon 0.38%, phosphorus 0.013%, chromium 0.019%, nickel 1.32%, molybdenum 0.007%, vanadium 0.010%, surplus are iron.
Flux-cored wire deposited metal performance:
Embodiment two
A kind of bridge steel high-strength and high ductility gas-shielded flux-cored wire, the medicine core include the ingredient of following weight fraction, gold Red stone 40%, feldspar 5%, quartzy 3% ﹑ zircon English 2%, 2% ﹑ lithium fluoride 0.6% of sodium fluoride, potassium sodium arc stabilizer 4%, silicomanganese close Gold 18%, manganese metal 4%, magnesium powder 4%, nickel powder 10%, ferrotianium 0.6%, ferro-boron 0.3%, surplus are iron powder, the weight of the above ingredient Amount score adds up to 100%.
The mass fraction of the titanium dioxide contained in the rutile is 95%.
The crust is SPCC-SD cold-rolled low carbon steel steel band.
The ratio that the medicine core accounts for welding wire total weight is 15%.
The detection of welding wire deposited metal composition, weight percent are carbon 0.043%, sulphur 0.007%, manganese 1.52%, silicon 0.40%, phosphorus 0.012%, chromium 0.018%, nickel 1.35%, molybdenum 0.008%, vanadium 0.013%, surplus are iron.
Flux-cored wire deposited metal performance:
Embodiment three
A kind of bridge steel high-strength and high ductility gas-shielded flux-cored wire, the medicine core include the ingredient of following weight fraction, gold Red stone 37%, feldspar 5%, quartzy 3.5% ﹑ zircon English 2.5%, 2.5% ﹑ lithium fluoride 0.8% of sodium fluoride, potassium sodium arc stabilizer 4%, Silicomangan 19%, manganese metal 5%, magnesium powder 5%, nickel powder 11%, ferrotianium 0.8%, ferro-boron 0.5%, surplus be iron powder, it is above at The weight fraction divided adds up to 100%.
The mass fraction of the titanium dioxide contained in the rutile is 95%.
The crust is SPCC-SD cold-rolled low carbon steel steel band.
The ratio that the medicine core accounts for welding wire total weight is 13%.
The detection of welding wire deposited metal composition, weight percent are carbon 0.048%, sulphur 0.007%, manganese 1.57%, silicon 0.43%, phosphorus 0.013%, chromium 0.021%, nickel 1.34%, molybdenum 0.009%, vanadium 0.009%, surplus are iron.
Flux-cored wire deposited metal performance:
The foregoing is merely the preferred embodiments of the invention, are not intended to limit the invention creation, all at this Within the spirit and principle of innovation and creation, any modification, equivalent replacement, improvement and so on should be included in the invention Protection scope within.

Claims (9)

1. a kind of bridge steel high-strength and high ductility gas-shielded flux-cored wire, including crust and the medicine core wrapped up by crust, feature exists In: the medicine core includes the ingredient of following weight fraction, rutile 30%~50%, feldspar 2%~8%, 1%~6% ﹑ of quartz Zircon English 0.5%~5%, 0.5%~5% ﹑ lithium fluoride 0.1%~1.5% of sodium fluoride, potassium sodium arc stabilizer 1%~8%, silicomanganese Alloy 10%~25%, manganese metal 1%~8%, magnesium powder 1%~6%, nickel powder 5%~15%, ferrotianium 0.1%~1.5%, boron Iron 0.05%~0.6%, surplus are iron powder, and the weight fraction of the above ingredient adds up to 100%.
2. bridge steel according to claim 1 high-strength and high ductility gas-shielded flux-cored wire, it is characterised in that: the medicine core packet Include the ingredient of following weight fraction, rutile 35%~45%, feldspar 3%~6%, 2%~4% ﹑ zircon English 1% of quartz~ 3%, 1%~3% ﹑ lithium fluoride 0.2%~1% of sodium fluoride, potassium sodium arc stabilizer 2%~5%, silicomangan 15%~20%, gold Belong to manganese 2%~5%, magnesium powder 2%~5%, nickel powder 8%~12%, ferrotianium 0.2%~1%, ferro-boron 0.1%~0.5%, surplus Weight fraction for iron powder, the above ingredient adds up to 100%.
3. bridge steel according to claim 1 high-strength and high ductility gas-shielded flux-cored wire, it is characterised in that: the medicine core packet Include the ingredient of following weight fraction, rutile 38%~42%, feldspar 4%~5%, quartzy 2.5%~3.5% ﹑ zircon English 1.5%~2.5%, 1.5%~2.5% ﹑ lithium fluoride 0.4%~0.8% of sodium fluoride, potassium sodium arc stabilizer 3%~4%, silicomanganese close Golden 16%~19%, manganese metal 3%~4%, magnesium powder 3%~4%, nickel powder 9%~11%, ferrotianium 0.4%~0.8%, ferro-boron 0.2%~0.4%, surplus is iron powder, and the weight fraction of the above ingredient adds up to 100%.
4. described in any item bridge steels high-strength and high ductility gas-shielded flux-cored wire according to claim 1~3, it is characterised in that: The mass fraction of the titanium dioxide contained in the rutile is 95%.
5. described in any item bridge steels high-strength and high ductility gas-shielded flux-cored wire according to claim 1~3, it is characterised in that: The crust is SPCC-SD cold-rolled low carbon steel steel band.
6. described in any item bridge steels high-strength and high ductility gas-shielded flux-cored wire according to claim 1~3, it is characterised in that: The ratio that the medicine core accounts for welding wire total weight is 12%~18%.
7. bridge steel according to claim 6 high-strength and high ductility gas-shielded flux-cored wire, it is characterised in that: the medicine core accounts for The ratio of welding wire total weight is 13%~17%.
8. described in any item bridge steels are welded with high-strength and high ductility gas-shielded flux-cored wire in bridge steel according to claim 1~7 Middle application.
9. described in any item bridge steels are with high-strength and high ductility gas-shielded flux-cored wire in Q500qE steel plate according to claim 1~7 Application in welding.
CN201610906348.6A 2016-10-17 2016-10-17 A kind of bridge steel high-strength and high ductility gas-shielded flux-cored wire Active CN106334884B (en)

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CN106862801A (en) * 2017-04-28 2017-06-20 天津市永昌焊丝有限公司 A kind of full-automatic gas-shielded flux-cored wire of pipe line steel
CN107283084B (en) * 2017-06-23 2019-09-20 天津市永昌焊丝有限公司 A kind of marine atmosphere corrosion-resisting steel submerged arc flux-cored wire
CN107252996B (en) * 2017-06-23 2020-02-21 天津市永昌焊丝有限公司 Titanium type gas shielded flux-cored wire for marine atmospheric corrosion resistant steel
CN108406159B (en) * 2018-01-18 2020-06-30 洛阳双瑞特种合金材料有限公司 High-toughness titanium-alkali seamless flux-cored wire suitable for all-position welding
CN108436322B (en) * 2018-06-15 2021-08-24 天津市金桥焊材集团股份有限公司 High-strength high-toughness iron powder type flux-cored wire for bridge steel and application thereof
CN109623196B (en) * 2018-12-27 2021-10-15 天津市永昌焊丝有限公司 High-toughness titanium flux-cored wire for weathering resistant steel
CN110640352B (en) * 2019-11-13 2021-09-03 四川大西洋焊接材料股份有限公司 Flux-cored wire for Q500qENH coating-free bridge steel and preparation method thereof
CN111604615A (en) * 2020-06-18 2020-09-01 昂科万德(武汉)科技有限公司 High-strength weather-resistant steel gas-shielded flux-cored wire and preparation method thereof
CN115194362A (en) * 2021-04-12 2022-10-18 天津市金桥焊材集团股份有限公司 Low-smoke 55-kilogram-level weather-resistant flux-cored wire

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